Rank Math ruft auf meiner Seite folgenden Fehler hervor:
“Es gab einen kritischen Fehler auf deiner Website.
Erfahre mehr über die Problembehandlung in WordPress.”
Dieser Fehler tritt jedoch nur auf, wenn man eine nicht existente Unterseite aufruft. Ansonsten läuft die Seite normal. Nach Deaktivierung des Plugins wird die normale 404 Seite angezeigt.
Assuming you are using the latest version of all the plugins and the themes (please update if not yet), it would seem like a conflict with one of the plugins or the theme you are using.
Only the site admin would know and your users won’t be affected by this troubleshooting.
If the issue persists, please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.
It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
I ran the Health Check Troubleshooting and found that the plugin Security Ninja is causing the issue. Once, I deactivate the plugin, the 404 page shows up normally. Please look into the screencast attached in the sensitive data section.
I would suggest posting the question to Security Ninja forum and see if they can resolve the issue.